Bulk Renamer
Use this to tidy messy names like `IMG_1234.jpg`, `scan 001.png`, `document(1)(2).pdf`, number photos sequentially, give a project's files a consistent naming scheme, or clean spaces into underscores.
Version 0.1.46 is permanently free with all 76 tools and modules. No usage quota, time limit, license key or subscription.
What it does
Use this to tidy messy names like `IMG_1234.jpg`, `scan 001.png`, `document(1)(2).pdf`, number photos sequentially, give a project's files a consistent naming scheme, or clean spaces into underscores. It is the natural twin of the File Organizer: first sort by type, then name them properly.
How to use it
- 1Click Choose folder and pick the folder to rename in.
- 2Set your rules (any of them, as many as you like):
- 3Read the Preview table to see each file's old and new name. Conflicts are flagged in red.
- 4Press Rename.
- 5If you are not happy with the result, press Undo to reverse the last batch.
Use cases
Organize phone photos
Choose folder, prefix holiday_, sequential number (at end), apply. holiday_001.jpg, holiday_002.jpg...
Clean spaces
Spaces → underscore, letter case lowercase. Project Deck.pdf → project_deck.pdf.
Change a version tag
Find final, replace v2. report final.docx → report v2.docx.
Sort by date
Add date prefix. notes.txt → 2026-06-12_notes.txt.
Frequently asked questions
Is Bulk Renamer free?
Yes. Version 0.1.46 is permanently free with all 76 tools and modules included. There is no usage quota or time limit, and no license key, account or subscription is required.
Local processing
Runs on your CPU/GPU. No file leaves your machine.
Batch ready
Process dozens or thousands of files in one run.
Part of BulkPro
Bundled with 76 tools across 7 modules: one install, one app.
Full UI reference, step-by-step workflows, edge cases
Every input, button, and behavior documented for advanced users.